Apparatus for feeding a plurality of motor fuels



E. E. HANS 2,210,536 APPARATUS FOR FEEDING A PLURALITY 0F MOTOR FUELS Aug. 6, 1940.

Filed June 6, 1938- INVENTOR.

Patented Aug. 6, 1940 N i 2,210,53e

APPARATUS FOR FEEDNG A PLURALITY OF MOTOR. FUELS Edmund E. Hans, Detroit, Mich.

Application June 6, 1938, Serial N0. 212,063

'l Claims.

This invention relates to the feeding of a plurality of motor fuels to an internal combustion engine, and more particularly to apparatus for completing said feeding. In my application Serial No. 199,517 led April l, 1938, there is dis.

closed means for automatically bringing about harmonious action of an internal combustion engine through the use of motor fuels of variant characteristics, i. e., by the use of two fuels such as .gasoline and alcohol. The present invention sets forth the dual fuel tanks and apparatus for simultaneously filling the fuel tanks.

The principal object of the present invention is to provide new and improved apparatus for containing two fuels of variant characteristics and means for simultaneously filling said apparatus.

Another object isto provide new and improved dual nozzles having variant nozzle openings to correspond to the openings in a dual fuel tank so that the user will not become confused and intermix the fuels when filling the tanks.

A further object of the present invention is to provide a new and improved filler cap for a-dual fuel tank so constructed that it will tightly seal both openings in the tank.

A still further object of the present invention is to provide a hinged tab for one of the openings in said dual fuel tank, the same being of a distinctive color to indicate what fuel is to be injected into that particular tank.

The above and other objects will appear more fully from the following more detailed description, andfrom the drawing, wherein Fig. 1` is a top plan view of a tank showing the top openingsI therein;

Fig. 2 is an end elevation of a tank, partly in section;

Fig. 3 is a plan view of a filler cap, partly broken away;

Fig. 4 is a cross section of a cap and filler cap flange taken substantially on the line 4-4 of Fig. 3

Fig, 5 is a cross section of the filler cap flange taken substantially on line 5--5 of Fig. 3;

Fig. 6r is a sectional elevation of a dual gasoline pump;

Fig. 7 is a detail of the filler nozzles for filling the tank showing in Fig. l;

Fig. 8 is an enlarged View of the nozzles shown in Fig, 7; and

Fig. 9 is an end view of the nozzles shown in Figs. 7 and 8.

Referring now to the drawing, the numeral I2 designatesv a fuel tank of any well known shape having a wall I3 formed therein to divide the tank I2 into two separate compartments, for the reception of two fuels of variant characteristics, such as gasoline in the larger compartment I4, and alcohol in the smaller compartment I5. Each compartment of the tank I2 is provided with means for conducting the two fuels herein designated to the carburetor, tube I6 leading from the alcohol compartment I5.and tube II leading froml the gasoline compartment I4 through cap I8. To fill both compartments of tank I2 simultaneously there isprovided an opening so placed that wall I3 acts as a barrier therebetween and a semi-circular opening is provided on each side of the barrier so that fuel may be deposited -into compartments I4 and I5. A flange I9 is provided to alignk with the opening in the top of tank I2, the same being designed to provide an engaging means for a ller cap 29.

of circumferential design andI has formed therein a web 2| which runs diametrically across the inside of` flange I9 andk is so aligned that the same may be soldered to the top of wall I3 to form a barrier between openings 22, 23, into compartments I4, i5. Web 2| extends the full height of flange I9, and when filler cap 20 engages flange I9 in sealed relationship, prevents the `intermingling of'gasoline and alcohol, when the vehicle is in motion. Flange I9 is also .grooved as at 2d to receive a pair of ears Y25, 26, secured to the inner portion of filler cap 2U by means ofy securing means 21, 28, ears 25, 26, are bent downwardly away from the top of the cap 2G sufficientn ly to engage grooves 2li when the cap 2U is' turned in a clockwise direction to lock the same to flange I9 the ears passing into the grooves to hold the cap in locked engagement. A gasket 29 is cut to conform to the shape of ange I9 and is interposed between flange I9 and filler cap 2f) to form a tight seal. A tab 30 is pivotally secured to the side of flange I9 by means of a pin 3| having a. spring mounted thereon and having Vone eX- trernity thereof bent asI at 32 to form a rest to maintain tab 30 normally in position shown in Fig. 4 of the drawing. Taby 30 may be brightly colored to act as an indicator to the lling station attendant and warn him as to which fuel is to be injected into the tank in which the tab is placed. When the nozzles shown best in Figs. '7 and 8 of the drawing are inserted into the openings 22, 23, one of said nozzles may also be colored a, color corresponding `to that of the tab to avoid V confusion` on the part of the attendant. When the nozzle is inserted tab 30 will move down' wardly from its normal horizontal position shown in Fig. 4 to allow insertion of the nozzle into th flange opening. V

To aid the distribution of two different fuels there is also provided a new and unique distribution pump consisting of a base 33, an upright supporting member 34 terminating in a horizontal sup-porting member 31 adapted to support a pair of fuel supply tanks 35, 36, one to contain gasoline and. the other alcohol. These fuels are pumped to tanks 35, 36 through conduits 38, 39 located in supporting member 34. Filling hose Flange I 9 is 40, 4i are also provided to communicate with tanks 35, 36 and supply fuels to twin dual nozzles 42, 43 which are constructed as a unit and held together by means of brace 44. A control means l5 is provided on each nozzle to allow one-handed v operation of the nozzles by the station attendant, and one nozzle is constructed much smaller than the other in order to feed gasoline into tank i4 much faster than nozzle 43 feeds alcohol to tank i5 in order to finish the i'llling of both tanks simultaneously. As will be seen from Fig. 9 of the drawing nozzle opening for nozzle 42 is much larger than the nozzle opening for nozzle 43, and to correspond and register therewith, opening 22 f' which leads into gasoline compartment I4 is much larger than opening 23 which leadsI into alcohol compartment i5, which construction will greatly aid the filling station attendant so that it would be practically impossible for him to switch the nozzles and inject alcohol into the gasoline compartment, or vice versa.

There has been provided herein new and improved means for carrying al plurality of motor fuels, as well as new and improved means for pumping said fuels into the unique carrying device. Taken in conjunction with my improved method of injecting a plurality of fuels into an internal combustion engine the complete disclosure sets forth a new and novel construction.

Although the invention has been described as applied to a specific installation, it is understood that certain variations and modications may be employed without departing from the fundamental principles as indicated by the scope of the following claims:

l. A fuel system for internal combustion engines comprising a plurality of fuel tanks, va filler neck disposed adjacent to said tanks, said ller neck having a pliu'ality of passageways therein which lead to said fuel tanks, respectively, a plurality of nozzles fixed together to be handled as a single unit, conduits extending from dilferent fuel supply sources to said nozzles, respectively, said nozzles each being vadapted to enter one of said filler neck passageways, and means co-acting with said nozzles and said ller neck for establishing a pre-determined relationship therebetween so that each of said nozzles may enter into only one particular filler neck passageway, for the purpose described.

A fuel system for internal combustion engines comprising a plurality of fuel tanks, a filler neck disposed adjacent to said tanks, said filler neck having a plurality of passageways therein which lead to said fuel tanks, respectively, the ller neck end of said passageways being of clissimilar shape, a pair of nozzles fixed together so as to be handled as a unit, and conduits extending from two different fuel supply sources to said nozzles, respectively, said nozzles being shaped similar to said filler neck passageways and positionedso that they may simultaneously enter only their respective ller neck passageways.Y

3, A fuel system for internal combustion engines comprising a plurality of fuel tanks, a filler neck disposed adjacent to said tanks, said filler neck having a plurality of passageways therein 4which lead to said fuel tanks, respectively, one

of the iiller neck ends of said passageways being substantially larger than the other, a pair of nozzles fixed together to be handled as a single unit, and a conduit extending from two different fuel supply sources to said nozzles respectively, said -nozzl'es being of Nshape and vvsize 'similar to said filler neck passageways, respectively, and so positioned that the larger of said nozzles may enter the larger passageway but cannot enter said smaller passageway.

4. A fuel system for internal'combustion engines comprising a plurality of fuel tanks, a filler neck disposed adjacent to said tanks, said ller neck having a plurality of passageways therein which lead to said fuel tanks, respectively, the ller neck ends of said passageways being of segmental shape with a common wall forming their flat sides, one of said segments being substantially larger than the other, a pair of nozzles xed together to be handled as a single unit, and conduits extending from two different fuel supply sources to said nozzles respectively, said nozzles each being of segmental shape and so proportioned and positioned that they may simultaneously enter the said respective ller neck passageways, the larger of said nozzles being prevented by its size from entering the smaller of the passageways.

5. A fuel system for internal combustion engines comprising a fuel container having a partition therein which forms two separate tanks, a common ller neck for both of said tanks, said iiller neck having a plurality of passageways therein which lead to the respective tanks, the filler neck ends of said passageways being of dissimilar shape, a pair of nozzles xed together so as to be handled as a single unit, and conduits ,extending from two different fuel ,supply sources to said nozzles respectively, one of said nozzles being shaped similar to one of said filler neck passageways and the other nozzle similar to the other passageway and spaced so that they may simultaneously enter said passageways, the last described nozzle being prevented by its shape from entering the first described passageway.

y 6. A fuel system for internal combustion engines comprising a main fuel tank, an auxiliary fuel tank disposed within said main tank, a common filler neck for both of said tanks disposed adjacent thereto, said filler neck having a plurality of passageways therein which lead to the respective fuel tanks, the ller neck ends of said passageways being of dissimilar shape, a'pair of nozzles xed together so as to be handled as a single unit, and conduits extending from two different fuel supply sources to said nozzles respectively, one of said nozzles being shaped similar to one of said filler neck passageways and the other nozzle similar to the other passageway, and spaced so that they may simultaneously enter said passageways, the shape of one nozzle preventing its use in the other of said passageways. 1

'7. A fuel system for internal combustion engines comprising a main fuel tank, an auxiliary fuel tank disposed within said main tank, a filler neck disposed adjacent to said tank, said filler neck having a plurality of passageways therein which lead to the respective fueltanks, thev filler neck ends of said passageways being of unequal segmental shape with common flat sides, a pair of nozzles fixed together so as to be handled as a single unit, and conduits extending from two different fuel supply sources to said nozzles respectively, said nozzles being shaped similar to said ller neck passageways respectively so that they may simultaneously enter said passageways, the shape of one nozzle preventing its entrance into the other of said passageways. i

`EDMUND HANS.v 'i 

